The new Air features a vastly improved Retina display: a 13.3″ edge-to-edge screen that boasts a resolution with more than 4 million pixels and yields nearly 50% more colors than the previous generation. Touch ID is now built in and is backed by Apple’s T2 Security Chip, which ensures all your SSD data is fully encrypted. Both the keyboard and Force Touch trackpad have been upgraded, the latter now offering 20% more area for multi-touch gestures and movement.